School Commit Init

Anul 1/Semestrul 1/Fundamentals of Programming/Homework 1/Problem5.py

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+#Generate the largest prime number smaller than a given natural number n. If such a number does not exist, a message should be displayed.
+
+def is_prime(n):
+    if n<2:
+        return False
+    for i in range(2,round(n**0.5)+1):
+            if n%i==0:
+                return False
+    return True
+
+def largest_prime_number_smaller_than_n(n):
+    if n < 3:
+        print("No such number exists")
+        return None
+    for i in range(n-1,0,-1):
+        if is_prime(i):
+            print("The smallest prime number smaller than {} is {}".format(n,i))
+            return i
+
+if __name__=="__main__":
+    n=int(input("Please enter an positive integer number: "))
+    largest_prime_number_smaller_than_n(n)